How to check your SEF

Discussion in 'Tutorial videos' started by Tobias, Mar 18, 2012.

  1. Tobias

    Tobias New Member

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    Hi friends,<br><br>more and more members use a chrony and make videos to!<br><br>Now it was time to find a new way to check your skills!<br><br>The SEF (Slinshot Efciency Faktor) combines all the factors in one number!<br><br>I think it´s realy interersting to check this! <br><br>Jörg knew how we calculate it and gave me this table! this is cool and now it´s easy.<br><br>Check your own SEF and post a video!<br><br>here is the table:<br><a href="https://docs.google.com/spreadsheet/ccc?key=0AhmVItl59G_ZdDdveEJzVUM1YTFrd3ZxeHlydnNhLVE" target="_blank" rel="nofollow">https://docs.google.com/spreadsheet/ccc?key=0AhmVItl59G_ZdDdveEJzVUM1YTFrd3ZxeHlydnNhLVE</a><br><br>Tobias<br><br>here is a how to Video:<br><embed pluginspage="http://www.macromedia.com/go/getflashplayer" src="http://www.youtube.com/v/7rOPsxhnP8I" width="425" height="350" type="application/x-shockwave-flash" wmode="transparent" quality="high" scale="exactfit"></embed>
     
  2. Ryan Wigglesworth

    Ryan Wigglesworth Senior Member

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    I am having problems getting a chrony in canada... I guess I will have to go for an hour and a half car ride (one way) to get one... blah. Stupid american export policies, they would have more money for their economy if they didnt shoot themselves in the feet at each opportunity...<br><br>If anyone has one they are looking to get rid of for cash or trade please pm me.
     

  3. Tobias

    Tobias New Member

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    you have to know, Faktor 1,0 is almost impossible!<br>you want this, so you have to shot a 64gramm (25mm Steelball) from 50m <br>distance with 100 m/s an only 5cm spread on the papertarget <img src="http://illiweb.com/fa/i/smiles/icon_cheers.png" alt="cheers" longdesc="28"><img src="http://r28.imgfast.net/users/2815/14/20/70/smiles/2307125563.gif" border="0" alt=""><img src="http://r28.imgfast.net/users/2815/14/20/70/smiles/1859659018.gif" border="0" alt=""><img src="http://r28.imgfast.net/users/2815/14/20/70/smiles/4053770264.gif" border="0" alt=""><br><br>Faktor 1,0 is more a thing for Jörg than for me <img src="http://illiweb.com/fa/i/smiles/icon_scratch.png" alt="scratch" longdesc="33"><br><br>so i think my SEF 0,45 is not soo bad, but you can made more from longer distance!
     
  4. zamarion

    zamarion New Member

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    if only i had a chrony i would try this out
     
  5. onnod

    onnod Im from Holland, isnt that weird?

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    i want one too but...<br>and where is the table again??
     
  6. Tobias

    Tobias New Member

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    here is the table:<br><a href="https://docs.google.com/spreadsheet/ccc?key=0AhmVItl59G_ZdDdveEJzVUM1YTFrd3ZxeHlydnNhLVE" target="_blank" rel="nofollow">https://docs.google.com/spreadsheet/ccc?key=0AhmVItl59G_ZdDdveEJzVUM1YTFrd3ZxeHlydnNhLVE</a><br><br>hope it works...
     
  7. onnod

    onnod Im from Holland, isnt that weird?

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